brnagn

iTrader: (3)

I bought a 2000 Z28 last year. It was missing the transmission and the engine was a big question mark. It had aftermarket heads, but I didn't know what was inside. I decided to pull the heads off before I tried to start it and found this:



The engine had Mahle pistons in it and I looked up the part numbers. I found that they were for a 4.005" bore! Yes, some shop bored a stock LS1 block 4.005" and this is the result. I thought some of you might get a laugh out of that. Luckily, the rotating assembly is still in good shape, so I am transferring everything to a LQ4 block.

silverz28camaro

iTrader: (20)

Wow, I'm surprised they sent it out like that....dow did the ring look? chewed up in that one spot?

Sounds like you got good internals for a 6.0 though..LOL

JUSTINSWS6

Its fine lmao

Daniel0026

<(Bad shop, Bad!)

NemeSS

iTrader: (127)

BIG WTF!

91sonomast

Don't sweat the little things man, it's just a "recommendation." Nothing says you can't bore it to 4.100 lol. What year was this motor? Wonder if you could still resleeve it? Looks like the ribs may be alright.

88blackiroc

iTrader: (3)

Wow...
they should of at least bored it out MORE

gMAG

iTrader: (1)

Ah, but nice hone job!

91sonomast

lol that's what I thought. Either the person that brought them the engine said, "Bore it to this spec.," and the shop told them that you're gonna run into problems but customer said "I don't care." Or the shop said, "ah **** it, that ****'ll buff right out," and they commenced to honing lmao. Either way, pretty impressive, someone needs to be smacked for it.

gMAG

iTrader: (1)

Mr. GoodShaft created this masterpiece.

bww3588

iTrader: (49)

Good ****...last time I went shopping for a machine shop, I asked how many ls engines they worked on...I walked out of 3 when they told me "a few" or "that's a 350 right?"

mark21742

It must have been a girls car....it was ribbed for her pleasure

dr_whigham

iTrader: (49)

^^LOL^^

I spoke with a local machine shop here about going to a 3.905 in my LS6 block. Good talk, seemed to know an understand everything I was talking about and asking.

Then I asked them if they had an LS torque plate.....

brnagn

iTrader: (3)

To my surprise, the ring didn't have any noticeable damage. I would have loved to have heard this engine run though...just to see how noisy it was.

The shop I took the LQ4 block to suggested re-sleeving it...but I don't know if it is worth the cost. I'm thinking about either taking it to my local scrap yard or use it as a mock up engine.

Good point, the previous owner might have told the shop, "I don't care what you think, bore it to 4.005." The cam that came out of this block had 247 degrees of duration and .624" lift. The previous owner was an ambitious guy.

Sales2@Texas-speed

iTrader: (5)

I've literally been cussed for telling a customer we could not/would not bore his LS1 that far.

brnagn

iTrader: (3)

Feel free to save this picture and use it as evidence the next time someone wants to argue! I don't know how many miles were on the engine, but I don't think it lasted very long.

salemetro

iTrader: (5)

LOL Yeah...it's funny how many shops will just take your money without just saying "Sorry, we're not set up to help you out." I'm VERY thankful that I found a decent one.

3rdCoastPowerSports

iTrader: (5)

wow! wow! wow! whats wrong with it, i think it just needs to be re honed. Unbelievable

Midnight02

iTrader: (8)

That's just awesome.

96capricemgr

iTrader: (1)

I think you guys are being too easy on whatever shop did this. Stop and think about it this way.
They didn't just heavily bore a block known to not accept much overbore, the bored it more than .1

How many OEM blocks can handle that kind of overbore? Then how many made in the last 30 years could handle it?

I would not say the shop was lacking LS1 knowledge I would say they are just flat out incompetent.

Common sense would dictate if considering boreing any block that far sonic testing is in order and before even doing that it wouldn't be hard to research if there was any vague possibility a bore that size would fit.